US966436A - Shade attachment. - Google Patents

Description

Patented Aug. 9, 1910.

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UNITED STATES ATENT OFFICE.

LABAN J. EYEREST, OF LOS ANGELES, CALIFORNIA, ASSIGNOR T HYNES SHADE GUIDE COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA.

SHADE ATTACHMENT.

l Specification of Letters Patent.

Patented Aug. 9, 1910.

To all whom Lt may concern.'

Be it known that I, LABAN J. Evnnnsr, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Shade Attachments, of which the following is a specification.

This invention relates to an attachment for Window shades which roll up a spring actuated roller; and the object thereof is to provide a device which will prevent the shade from being torn off the roller and which will also prevent the shade from unwinding to such a point that it is impossible to release the ratchet in order to allow the shade to be elevated.

In the construction now generally in use, when the shade is pulled downwardly to the limit of its movement, it is extremely liable of being torn off the roller. If it is not torn ofi" and if the ratchet catches the roller in the position for the lowermost position of the shade, it is then impossible to further lower the shade in order to release the ratchet.

The present invention is designed to overcome both of these diiiiculties in a simple and eflicient manner.

Broadly, it consists of a hook member secured to the roller and adapted to engage with a stop member on the window casing when the shade has come Within a short space of being unrolled as far as would otherwise be possible. This hook member is placed in such a position with relation to the ratchet that the ratchet will not hold the roller at the position where it is stopped, but the roller must be backed up slightly before the ratchet will catch. Thus, there is always room for turning the roller to disengage the ratchet.

In the accompanying drawings: Figure 1 is a perspective view showing the application of the invention to a window shade. Fig. 2 is an end elevation of the portions shown in Fig. 1.

In the drawings 5 designates the casing of a window, equally indicative of the casing or framing of any aperture which shade 6 is designed to close. Shade 6 is wound upon a roller 7 of ordinary construction, this roller being provided with some means of rotating in the direction indicated by the arrow so as to roll the curtain up thereon. (This means is not shown as it does not enter into the invention). The end of the shade is aiixed to the roller at S and is wound upon the roller in superposed layers, the second of which is designated 9. Between the innermost layer, where the shade is fastened, and layer 9 is arranged a small spring wire member 10. This member is secured to the roller by having its end 11 bent at right angles and driven into the roller through the innermost layer of shade 6. The member extends toward the end of the roller and Aprojects out from between the layers of the shade, being bent so as to form a hook 12 upon its outer end. Just inside hook 1Q a staple 13, driven into the roller, forms a guide for the hook member. This member is so constructed that it has a tendency, on account of its own resiliency, to place itself in the position shown in dotted lines, being prevented from moving farther outwardly by contact with the outer end of staple 13. Upon the unwinding of the cur tain, layer 9 is removed from over the hook member, the member then springing out to the position shown in dotted lines. In this position it will engage with a staple 14C driven into casing 5 and will thus prevent any further rotation of the roller in the direction opposite to that indicated by the arrow. Upon the rewinding of the shade, layer 9 again forces the hook member back to its inner position. In this position it will clear both easing 5 and staple 14. The out wardly springing tendency of the hook member is slight so that the inward radial pull of layer 9 in rewinding is suiicient to move the member back to position. Hook member 10 is so placed upon the roller that the ratchet or other means used for holding the roller against rotation in the direction indicated by the arrow will not catch and hold the roller at the point where it is stopped by the hook member. This provision is made on account of the fact that it is always nec essary to move the shade downwardly a slight distance in order to release the ratchet.

Having described my invention, I claim:

1. In combination with a roller and a shade thereon, the shade winding up in layers upon the roller, a hook member composed of a piece of spring wire lying under a layer of the shade and having its outer end projecting beyond the edge of the shade and its inner end secured to the roller, the outer end of the wire being formed into a hook projecting outwardly from the roller, the resiliency of the wire tending to throw it outwardly away from the roller, means on the roller for guiding the hook member in its outward movement away from the roller and for limiting that movement, and a stationary stop member adapted to be engaged by the hook on the outer end of the hook member.

2. In combination with a roller and a shade wound thereon, a hook member composed of a piece of spring wire lying under a layer of shade and having its inner end aiiixed to the roller and its outer end projecting beyond the edge of the shade, a hook formed on the outer end of the wire, the plane of the hook being at right angles to the axis of the roller7 and a stationary stop member over which the hook is adapted to catch when the shade is unwound ott' the wire.

3. In combination with a roller and a shade wound thereon, a hook member composed of a piece of spring wire lying under a layer of shade and having its inner end aiixed to the roller and its outer end projecting beyond the edge of the shade, a hook formed on the outer end of the wire, the plane of the hook being at right angles to the axis of the roller, a stop on the roller to limit the outward movement of the hook, and a stationary stop member over which the hook is adapted to catch when the shade is unwound olf the wire.

4L. In combination with a roller and a shade wound thereon7 a hook member composed of a piece of spring wire lying longitudinally of the roller under a layer of the shade having its inner end affixed to the roller and its outer end projecting beyond the edge of the shade, a hook formed on the outer end of the wire, the plane of the hook being at right angles to the axis of the roller, a staple secured in the roller and encompassing the outer end of the wire near the hook, and a staple secured in the stationary frame on which the roller is revolubly mounted, over which staple the hook is adapted to catch when the shade is unwoundoil the wire.

In witness that I claim the foregoing I have hereunto subscribed my name this 17th day of February 1910.

LABAN J. EVEREST.

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